Perrier, A.

patient value d-dimer embolism d-dimer test result result probability study d-dimer test validation number score increase geneva derivation value † † proportion tomography cohort table bounameaux h point investigation group hospital geneva score roy pm analysis ddimer bmj | follow-up decision rule helical physician exclusion probability assessment d-dimer test results vidas d-dimer exclusion result number perrier wells score assessment gal g d-dimer measurement ultrasonography venou validation sets university bounameaux bmj.com department france range righini coefficient medicine research level patients >80 years geneva university hospital d-dimer tests moerloose p age group >80 cutoff values concentration 0.2 gourdier al outcome imaging tests characteristic ch -1211 geneva exclusion criteria iqr =interquartile range outpatient utility review boards specificity comparison randomised non-inferiority trial